Side Dishes
This vegan sweet potato quiche delivers all the comfort of classic quiche without a single egg or dairy product. The secret lies in a crisp, flaky crust made with vegan butter and a creamy filling enriched with mashed sweet potatoes and flax eggs.
I perfected this recipe after years of experimenting with plant-based baking—every bite balances sweet, savory, and spiced notes perfectly.
The crust uses a simple vegan pie dough recipe with cold vegan butter cut into the flour for that signature flakiness. Meanwhile, the filling combines roasted sweet potatoes with a mixture of tofu, flax eggs, and warm spices like cinnamon and nutmeg.
This isn't just a side dish—it's a hearty, satisfying meal that holds its shape beautifully when sliced.
What you'll end up with is a golden, crisp-edged quiche with tender, spiced sweet potato filling that stays moist even after baking. The crust remains perfectly flaky, while the filling delivers rich, comforting flavors without relying on dairy or eggs.
This recipe proves vegan baking can be just as impressive as traditional versions.
Perfect for brunch, lunch, or a vegetarian dinner, this quiche reheats beautifully and pairs well with a fresh salad or roasted vegetables. The filling can be prepped ahead, making it ideal for meal planning. Let's get started on this plant-based masterpiece.
Ingredients for vegan sweet potato quiche
Six servings of flaky vegan crust and spiced sweet potato filling—no eggs or dairy needed.
| Ingredient | Amount | Notes |
|---|---|---|
| Medium Sweet Potatoes 🍠 | 2 whole | Peeled, cubed, roasted |
| All-Purpose Flour 🌾 | 2 cups | For crust, plus extra for dusting |
| Vegan Butter 🧈 | ¾ cup | Cold, cubed, unsalted |
| Ice Water 💧 | ¼ cup | For dough binding |
| Salt 🧂 | ½ tsp | Fine sea salt |
| Ground Black Pepper 🌶️ | ¼ tsp | Freshly ground |
| Silken Tofu 🍲 | 12 oz | Drained, blended smooth |
| Ground Flaxseed 🌾 | 3 tbsp | For flax eggs |
| Unsweetened Almond Milk 🥛 | ½ cup | For flax eggs |
| Ground Cinnamon 🌿 | 1 tsp | Warm spice |
| Ground Nutmeg 🌿 | ¼ tsp | Freshly grated |
| Ground Ginger 🌿 | ½ tsp | Freshly ground |
| Onion Powder 🧅 | ½ tsp | For savory depth |
| Garlic Powder 🧄 | ½ tsp | Freshly ground preferred |
| Smoked Paprika 🌶️ | ½ tsp | For subtle smokiness |
The crust is where this quiche shines. Earth Balance vegan butter (or any cold, firm plant-based butter) is non-negotiable for flakiness—it needs to be cold enough to cut into small pea-sized pieces. King Arthur all-purpose flour works best for pie crusts, but any high-protein flour will do. For the sweet potatoes, orange-fleshed varieties like Jewel or Beauregard give the best texture and color. Roast them until fork-tender, then mash them smooth—no lumps, or the filling will be grainy. I always roast a batch ahead and refrigerate them for 3-4 days so they're ready when inspiration strikes.
No vegan butter? Coconut oil works in a pinch, but it lacks the flavor. Short on flaxseed? Chia seeds at double the amount (so 6 tbsp chia + 0.5 cup water) makes a decent substitute. The spices are flexible—swap nutmeg for cardamom at half the amount if you prefer, but the cinnamon and ginger are key for that warm, comforting flavor. For the tofu, silken works best—regular tofu will make the filling too dense. If you can't find silken, drain regular tofu well and blend it until completely smooth. The filling can be prepped a day ahead and stored in the fridge until ready to bake.
Assemble the quiche just before baking—cold filling prevents the crust from getting soggy. Bake at 375°F for 40-45 minutes until the crust is golden and the center is set. Let it cool for 15 minutes before slicing, or the filling will run. Reheats beautifully—just pop slices in the oven at 350°F for 10 minutes. The crust stays crisp, while the filling warms through perfectly. Store leftovers in an airtight container for 3 days in the fridge or 2 months in the freezer. For meal prep, slice and freeze individual portions—they thaw quickly and reheat like a dream.
Why You'll Love This Recipe
- No-Fuss Assembly: I swear by this crust—just flour, vegan butter, and ice water. No rolling, no stress. The sweet potatoes roast while you mix the dough, so it’s basically hands-off magic.
- Sweet Spice Magic: That caramelized sweet potato filling? It’s like autumn in a pan. The natural sugars get sticky and rich, and the crust soaks up just enough to make every bite ridiculously good.
- Lunchbox Hero: Between us, this is my go-to for packed lunches. Slice it cold the next day, and it’s still warm in your heart. (Yes, even on a Tuesday night.)
- Budget Win: Sweet potatoes and flour? Affordable and filling. I make this twice a month, and it feeds my family for days without breaking the bank—or my grocery budget.
Step-by-step instructions for vegan sweet potato quiche
Here's how to create a golden crust filled with spiced sweet potato and creamy tofu mixture.
Prepare the Sweet Potato Filling
Preheat your oven to 400°F. Peel and cube the 2 whole medium sweet potatoes, cutting them into ½-inch pieces. Spread them on a baking sheet lined with parchment paper and toss with 1 teaspoon olive oil, ½ teaspoon salt, and ¼ teaspoon black pepper. Roast for 20-25 minutes until tender and slightly caramelized, stirring halfway through.
While they roast, blend the 12 ounces silken tofu with 3 tablespoons ground flaxseed and ½ cup unsweetened almond milk until completely smooth. This creates a rich, egg-free binder for the filling. In a separate bowl, whisk together the roasted sweet potatoes, 1 teaspoon cinnamon, ¼ teaspoon nutmeg, ½ teaspoon ginger, ½ teaspoon onion powder, ½ teaspoon garlic powder, and ½ teaspoon smoked paprika.
Make the Flaky Vegan Crust
Cut the ½ cup cold vegan butter into small cubes and place in a large bowl. Add the 2 cups all-purpose flour and ½ teaspoon salt, then use a pastry cutter or your fingers to work the butter into the flour until the mixture resembles coarse crumbs with pea-sized butter pieces remaining. Gradually add the ¼ cup ice water one tablespoon at a time, mixing gently with a fork until the dough just comes together when pressed.
Turn the dough onto a lightly floured surface and knead briefly until smooth. Roll it out to ⅛-inch thickness and transfer to a 9-inch pie dish, pressing gently to fit. Trim any excess dough hanging over the edges. Prick the bottom with a fork and blind-bake for 15 minutes at 375°F using pie weights or dried beans to prevent puffing.
Assemble and Bake the Quiche
Remove the pie weights and increase the oven temperature to 375°F. Spread the sweet potato mixture evenly over the baked crust, then pour the tofu mixture on top, spreading it to cover the filling completely. The mixture should be smooth and creamy—if it looks too thick, whisk in 1-2 tablespoons of water to achieve a pourable consistency.
Bake for 30-35 minutes until the filling is set and the crust is golden brown. A toothpick inserted in the center should come out clean. Let the quiche cool for 10 minutes before slicing to allow the filling to firm up slightly. The result should be a flaky, buttery crust filled with spiced sweet potatoes and a velvety tofu custard.
Serve Warm with Fresh Herbs
Slice the quiche into 6 equal wedges and serve warm. Garnish with fresh parsley or thyme for added brightness. The crust should be crisp and golden, while the filling remains moist and flavorful. For extra flakiness, brush the crust with a little melted vegan butter before serving if desired.
This quiche keeps well in the refrigerator for up to 3 days, making it perfect for meal prep. Reheat slices in the oven at 350°F for 10-12 minutes to restore freshness and crispiness.
Pro Tips For Making Vegan Sweet Potato Quiche
- Boil Sweet Potatoes Until Fork-Tender: I learned this the hard way—undercooked sweet potatoes turn to mush in the quiche, while overcooked ones lose their texture. Aim for a knife sliding in like butter, not a fork prying apart fibers. Drain well and pat dry; no one wants a soggy crust.
- Chill Dough Before Rolling: Sprinkle that flour-butter mix with ice water and let it rest 20 minutes before rolling. I used to skip this, and the dough always cracked or stuck. Cold butter means flaky layers, not greasy messes—trust the wait.
- Prevent Crust Sogginess with Butter Barrier: Brush the quiche dish with melted vegan butter before pressing in the dough. The extra fat creates a shield against the sweet potato’s moisture. Skip this, and your crust will turn into a sad, limp bottom.
- Sear Sweet Potatoes First: Slice the sweet potatoes thin, toss in a pinch of salt, and sear them 2 minutes per side in a dry pan. This caramelizes the edges and cuts down on baking time. Raw slices steam instead of crisping—your quiche will thank you.
Creative variations of this vegan sweet potato quiche
Spiced Pumpkin Twist
Swap the sweet potatoes for 2 cups roasted pumpkin purée (about 1 medium sugar pumpkin) and reduce the almond milk to ¼ cup for a thicker filling. Boost the spices with ½ teaspoon pumpkin pie spice and a pinch of allspice for that classic autumn flavor.
The pumpkin adds natural sweetness while keeping the dish hearty and satisfying. 🎃
Black Bean & Corn Fusion
Add 1 cup cooked black beans and ½ cup corn kernels to the filling for a Southwestern-inspired twist. Increase the smoked paprika to 1 teaspoon and add ½ teaspoon cumin for depth.
Top with ¼ cup vegan shredded cheddar before baking for a melty finish. This version is packed with protein and fiber! 🌶️
Apple Cinnamon Crisp Topping
After baking, sprinkle the quiche with a mix of ½ cup rolled oats, 2 tbsp brown sugar, 2 tbsp chopped pecans, and 1 tsp cinnamon.
Bake for an additional 5 minutes at 375°F until golden. The caramelized topping adds texture and balances the sweetness of the filling. Perfect for breakfast or dessert! 🍏
Savory Mushroom & Spinach
Sauté 1 cup sliced mushrooms and 2 cups fresh spinach in 1 tbsp olive oil until wilted, then mix into the filling. Add ½ teaspoon thyme and ¼ teaspoon nutmeg for a savory twist. This version is lighter but still rich and satisfying—ideal for a vegetarian dinner. 🍄
Gluten-Free Adaptation
Replace the all-purpose flour with a 1:1 gluten-free flour blend (like Bob’s Red Mill) and add 1 tbsp xanthan gum to the crust. Use ¼ cup extra cold vegan butter to ensure flakiness.
The filling remains unchanged, making this a great option for gluten-sensitive diners. The texture stays crisp and flavorful! 🌾
Sweet Potato & Pecan Crumble
Top the baked quiche with a crumble made from ½ cup chopped pecans, 2 tbsp maple syrup, and 1 tbsp coconut oil. Bake for 3-4 minutes until golden.
The crunchy topping adds a buttery, nutty contrast to the spiced filling. A perfect balance of textures and flavors! 🌰
Nutrition facts
Frequently asked questions about vegan sweet potato quiche
Can I make this quiche crust without vegan butter?
Yes, but the texture will differ. Use ½ cup coconut oil chilled for 30 minutes instead—it creates a flaky but slightly denser crust. For extra richness, add 1 tablespoon vegan powdered milk to the dough. The filling's flavor will still shine, but the crust won't be as tender.
How do I prevent a soggy bottom crust?
Always blind-bake the crust for 15 minutes with pie weights before adding filling. Keep the filling cold until ready to assemble—chill both components for 30 minutes before baking. The contrast in temperatures helps maintain crispness. For extra insurance, sprinkle a thin layer of vegan puff pastry crumbs on the crust before adding filling.
What's the best way to reheat leftover quiche?
Oven reheating preserves texture best: slice quiche, place on a baking sheet, and warm at 350°F for 10-12 minutes. For microwave reheating, cover with a damp paper towel and heat for 45-60 seconds. The crust stays crisp when reheated properly, while the filling warms through evenly. Never reheat in the toaster—it dries out the filling.
Can I make this quiche ahead of time?
Assemble the quiche (unbaked) up to 24 hours ahead and refrigerate. Bake when ready—no need to thaw. For the filling, you can prep the sweet potato and tofu mixtures separately up to 3 days ahead and store in airtight containers. The crust can be made 2 days ahead and kept wrapped at room temperature. Perfect for meal prep!
How do I make this gluten-free?
Replace all-purpose flour with a 1:1 gluten-free flour blend (like Bob's Red Mill) and add 1 tablespoon xanthan gum to the crust. Use ¼ cup extra cold vegan butter for flakiness. The filling remains unchanged—just ensure your almond milk is certified gluten-free. The texture stays crisp and flavorful, with no noticeable difference!